The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 18, 2020
Filed:
Feb. 01, 2019
Applicant:
Samsung Electronics Co., Ltd., Gyeonggi-do, KR;
Inventors:
Srinivas Chinthalapudi, Bangalore, IN;
Prasad Basavaraj Dandra, Bangalore, IN;
Assignee:
Samsung Electronics Co., Ltd, , KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04W 36/00 (2009.01); H04L 29/06 (2006.01); H04W 76/18 (2018.01); H04W 80/04 (2009.01);
U.S. Cl.
CPC ...
H04W 36/0022 (2013.01); H04L 29/06 (2013.01); H04L 65/1069 (2013.01); H04L 65/1089 (2013.01); H04L 69/24 (2013.01); H04W 76/18 (2018.02); H04W 80/04 (2013.01);
Abstract
Methods and apparatuses are provided for controlling a voice call at a user equipment (UE) in a wireless network. A method includes transmitting, to a network entity, a tracking area update (TAU) service request for a subsystem (IMS) initiation; receiving, from the network entity, a TAU service reject message; and in response to the TAU service reject message, stopping a circuit switch (CS) fall back call in at least one legacy radio technology (RAT).